JPH0612280U - Clamping device for body assembly - Google Patents

Abstract

(57) [Summary] [Purpose] Improve the accuracy of the side body construction of the car body,
Clamp the side body by absorbing the dimensional difference. A positioning clamp 5 that has a reference receiving surface 6 that is inscribed in a part of the outer peripheral surface of the side body and defines the mounting position of the side body S, and is held in a fixed position during assembly.
And a positioning clamp 5 which is installed so as to be able to move back and forth in the pressing direction side and the opposite side while being pressed to the reference receiving surface 6 side and circumscribes a part of the outer peripheral surface of the side body S.
The side body S is clamped by an appropriate number of clamp pairs, one pair of which is a movable clamp 15 for sandwiching the side body S between and.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicle body assembly clamping device that clamps side bodies when assembling the vehicle body by attaching both side bodies of the vehicle body to a floor panel or a roof.

[0002]

[Prior art]

 Conventionally, when assembling a side body to a floor panel or roof, as shown in Fig. 3, the side body b is fixed by a pair of inner and outer fixed clamps a and a that are held at fixed positions on the transfer line during assembly. I was clamped.

[0003]

[Problems to be solved by the device]

 When the side body b is clamped by both the fixed clamps a, a gap is formed between the fixed clamp a and the side body b due to the variation in the cross-sectional dimension of the side body b, which deteriorates the installation accuracy of the side body b. However, there is a problem that the size of the gap between the edge of the back door assembled to the side body b and the outer peripheral surface of the side body b varies and the outer peripheral surface of the side body b is dented. The present invention aims to solve the above problems.

The vehicle body assembly clamping device of the present invention includes a pair of base plates installed on both sides of a transfer line for conveying floor panels so as to be able to retract outward, and an inner part of an outer peripheral surface of a side body. A positioning clamp that has a reference receiving surface that contacts the side body and stipulates the installation position of the side body, and is held in a fixed position during assembly; and the pressing direction side and the opposite side when pressed to the reference receiving surface side. It is installed so that it can be moved back and forth, and a suitable number of pairs of clamps are attached, one pair being a movable clamp that circumscribes a part of the outer peripheral surface of the side body and clamps the side body between it and the positioning clamp. It has a different configuration.

[0005]

[Operation] When the side body of the vehicle body is clamped by an appropriate number of clamp pairs, the reference receiving surface of the positioning clamp held in the fixed position is inscribed in a part of the outer peripheral surface of the side body, and the side body is fixed by the positioning clamp. The mounting position of the side clamp is regulated, and the movable clamp pressed against the reference receiving surface is moved back and forth to the pressing direction side and the opposite side according to the cross-sectional dimension of the side die, and circumscribes a part of the outer peripheral surface of the side body. Then, the dimensional difference is absorbed and the side body is clamped between the positioning clamp and the movable clamp without any gap.

[0006]

[Effect of device]

 The present invention is configured as described above, so that even if the cross-sectional size of the side body varies, the movable clamp is moved back and forth according to the cross-sectional size of the side body to position the side body and the movable clamp. The side body can be clamped accurately without gaps, and the side body can be held at a fixed installation position by the reference receiving surface of the positioning clamp. The dimensional accuracy of the gap between the side body and the edge of the back door that is assembled to the side body can be improved and stabilized by improving the accuracy of the body construction width, and the outer surface of the side body can be improved. The surface quality of the side body S can be improved by eliminating the problem that the dent is scratched by the clamp.

[0007]

【Example】

 Next, one embodiment of the present invention will be described with reference to FIGS. In a vehicle body assembly process in which both side bodies S of a vehicle body are assembled on both sides of a floor panel F and a roof R, respectively, a pair of left and right fixed bases 2 are provided on both sides of a transfer line 1 on which the floor panel F is transferred. Are installed horizontally opposite to each other, and are raised by the actuators (not shown) at the inner ends of both fixing bases 2 and are set up on both sides of the transfer line 1 so that they can be retracted to the outside during assembly. A pair of base plates 3 are connected so as to be rotatable inward and outward.

An appropriate number of support arms 4 are vertically arranged on the two base plates 3 so as to be opposed to each other in a horizontal posture in an upright state. The support arms 4 are provided so as to project, and in this example, four support arms 4 are attached to both base plates 3, respectively.

A positioning clamp 5 that is held at a fixed position on the transfer line 1 when the side body S is installed is attached to the tip of the support arm 4, and the tip of the positioning clamp 5 is attached to the outer peripheral surface of the side body S. A direction orthogonal to the transport direction A, which is inscribed in a part of the outer peripheral surface of the side body S while being in contact with the first contact surface S1 formed along the transport direction A of the floor panel F at the rear end. A reference receiving surface 6 that defines the installation position of the side bodies S with respect to the side body S and defines the installation width of both the side bodies S is formed, and the tip of the positioning clamp 5 conveys to the rear portion of the outer peripheral surface of the side body S. A front positioning surface 7 and a rear positioning surface 8 that contact the second and third contact surfaces S2 and S3 that are formed in a direction orthogonal to the direction A and that position the side body S in the transport direction A are formed. ing.

A bracket 9 is attached to the inner surface of the base plate 3 so as to face the support arm 4, and a spring support formed in parallel with the base plate 3 is attached to the end of the bracket 9 on the support arm 4 side. A pin-shaped pressing member 10 is inserted into and supported by the case 9a so as to be slidable in the axial direction.

A spring 11 that presses the pressing member 10 toward the reference receiving surface 6 side of the positioning bracket 5 is sandwiched between the head 10 a of the pressing member 10 and the spring receiver 9 a, and the base end of the pressing member 10 is inserted. An adjusting nut 12 that adjusts the pressing force of the spring 11 and a lock nut 13 that locks the adjusting nut 12 are screwed adjacently to the portion.

A movable clamp 15 that circumscribes a part of the outer peripheral surface of the side body S and clamps the side body S between the positioning clamp 5 and the end of the bracket 9 on the side opposite to the support arm 4 is supported by the support shaft 14. Is rotatably connected to the positioning clamp 5 side and the opposite side.

The head 10a of the pressing member 10 is pressed against the tip of the movable clamp 15, and the movable clamp 15 is pressed toward the reference receiving surface 6 side by the elastic force of the spring 11 and the pressing direction side and its side. The movable clamp 15 is installed such that it can move back and forth, and the end face of the movable clamp 15 on the side of the positioning clamp 5 is pressed against a fourth contact face S4 formed on the outer surface of the outer plate of the side body S to make the first contact. The pressing surface 16 for pressing the contact surface S1 against the reference receiving surface 6 is formed substantially parallel to the transport direction A.

On both base plates 3, four pairs of clamps, each of which includes a positioning clamp 5 and a movable clamp 15, are attached. Two of the four pairs of clamps are connected to the belt line. It is arranged above the corresponding height and the other two pairs of clamps are arranged below the height corresponding to the belt line.

The side body S is clamped by each clamp pair in a state where the base plate 3 is pivoted outward and retracted. In this state, the base plate 3 is pivoted inward to build the side body S. It is set in the position.

Next, the operation and effect of the embodiment having the above configuration will be described. In this example, a pair of base plates 3 are installed on both sides of the transfer line 1 on which the floor panel F is transferred so as to be able to retract outward. Positioning clamp 5 that has a reference receiving surface 6 that defines the mounting position of the, and is held in a fixed position during assembly, and with the reference receiving surface 6 pressed, it moves forward and backward toward the pressing direction side and the opposite side. A proper number of pairs of clamps, which are movably installed and circumscribe a part of the outer peripheral surface of the side body S and sandwich the side body S between the positioning clamp 5 and a movable clamp 15, are provided. It is installed.

Therefore, even if the cross-sectional dimension of the side body S varies, the movable clamp 15 is moved back and forth according to the cross-sectional dimension of the side body S to position the side body S between the clamp 5 for positioning. The side body S can be clamped accurately without gaps, and the side body S can be held at a fixed installation position by the reference receiving surface 6 of the positioning clamp 5. The accuracy of the building width of the body S is improved, and the dimensional accuracy of the gap T between the first contact surface S1 of the side body S and the edge D1 of the back door D assembled to the side body S is improved and stabilized. It is possible to improve the surface quality of the side body S by eliminating the problem that the outer peripheral surface of the side body S is dented by a clamp. It

Although the movable clamp 15 is pressed by the spring 11 in the above embodiment, the movable clamp 15 may be pressed by an air cylinder or the like instead of the spring.

[Brief description of drawings]

FIG. 1 is a plan view of an essential part of a clamp device showing an embodiment of the present invention.

FIG. 2 is likewise a front view of the clamp device.

FIG. 3 is a schematic transverse sectional view of a conventional clamp mechanism.

[Explanation of symbols]

 1 Transport line 3 Base plate 5 Positioning clamp 6 Reference receiving surface 15 Movable clamp S Side body

Claims (1)

[Scope of utility model registration request] 1. A pair of base plates installed on both sides of a conveyor line for conveying floor panels so as to be able to retract to the outside, and a part of the outer peripheral surface of the side body is inscribed and the side body is installed. A positioning clamp that has a reference receiving surface that defines the position and is held in a fixed position during assembly, and is installed so that it can be moved back and forth in the pressing direction side and the opposite side while being pressed to the reference receiving surface side. And an appropriate number of pairs of clamps, one pair of which is circumscribed on a part of the outer peripheral surface of the side body and has a movable clamp that holds the side body between the positioning clamp and the positioning clamp. Clamp device.